Valve Timing, Checking

Special tools and workshop equipment required 

• Camshaft Bar:T10068A 
  Fig 1: Identifying Camshaft Bar T10068 A

  Courtesy of AUDI OF AMERICA, LLC

Test Sequence

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Remove the intake manifold upper section. Refer to INTAKE MANIFOLD UPPER SECTION, REMOVING AND INSTALLING .

-- Remove the cylinder head cover. Refer to CYLINDER HEAD COVER, REMOVING AND INSTALLING .

-- Turn the crankshaft in the direction of engine rotation to cylinder 1 TDC.

Fig 2: Identifying Cylinder 1 At Top Dead Center (TDC) Mark

Courtesy of AUDI OF AMERICA, LLC

Cams -A- of cylinder 1 must face each other.

Fig 3: Camshaft Lobes For Cylinder Facing Each Other

Courtesy of AUDI OF AMERICA, LLC

-- Insert the Camshaft Bar: T10068 A  in both shaft grooves.

Fig 4: Identifying Camshaft Bar T10068 A Engage In Shaft Grooves

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Due to the camshaft adjuster function, the camshaft grooves may not be perfectly horizontal. If necessary, turn the camshaft back and forth -arrows- slightly with an open end wrench in order to insert the Camshaft Bar:T10068 A  .

Fig 5: Counter-Holding At Camshaft Using Wrench

Courtesy of AUDI OF AMERICA, LLC

Check the adjustment marks on the camshaft adjuster with the marks on the control housing:

• The arrows on the camshaft adjusters must line up with the notches on the right side of the control housing. Markings on control housing. Refer to Fig 8.
  Fig 6: Verifying Installation Marks Of Camshaft Adjuster And Marks On Control Housing

  Courtesy of AUDI OF AMERICA, LLC

-- The distance between the markings on the camshaft adjuster must be exactly 16 rollers of camshaft timing chain.

Fig 7: Distance Between Marks On Camshaft Adjuster

Courtesy of AUDI OF AMERICA, LLC

If the markings do not match:

-- Adjust the valve timing. Refer to VALVE TIMING, ADJUSTING .

If the markings match:

-- Install the cylinder head cover. Refer to CYLINDER HEAD COVER, REMOVING AND INSTALLING .

-- Install the intake manifold upper section. Refer to INTAKE MANIFOLD UPPER SECTION, REMOVING AND INSTALLING .

Markings on control housing with FSI engines

Fig 8: Identifying Markings On Control Housing

Courtesy of AUDI OF AMERICA, LLC

-A- Flywheel side view

-B- Vibration damper side view

Notches -arrows- are reference points for markings on camshaft adjusters.